Backflow Testing & Certification Services in Columbus, Ohio

Certified Backflow Testing to Protect Your Water Supply

Backflow testing is a mandatory annual requirement to ensure that your drinking water remains safe from contamination. If your backflow prevention device hasn’t been tested or certified, you risk water shutoff by local authorities.

At The Waterworks, we provide certified backflow testing, certification, and repairs for homeowners, businesses, and municipal facilities across Columbus and Central Ohio. Our team ensures that your backflow preventers comply with all local and federal regulations, keeping your water supply safe and contaminant-free.

Call us today to schedule your annual backflow testing and stay in compliance!  

Schedule Your Service Now!

What Are the Legal Requirements for Backflow Testing?

Federal and Ohio state laws require that all backflow prevention devices be tested annually by a certified backflow tester. These regulations help prevent contaminants, pesticides, and chemicals from entering the drinking water supply.

If your backflow device is not tested, local authorities may shut off your water supply. Each device has a unique serial number for tracking, and all testing and repairs must be completed by the property owner.

At The Waterworks, we make the process easy and hassle-free by handling:

  • Certified backflow testing
  • Official documentation & compliance reporting
  • Backflow device repairs and replacements (if needed)

We provide same-day testing and repairs, so you can stay compliant and keep your water safe.   

Why Is Backflow Testing Important?

Backflow prevention devices protect public and private water supplies from contamination caused by:

  • Pesticides & Fertilizers from irrigation systems
  • Chemicals & Industrial Waste from businesses and manufacturing facilities
  • Sewage & Wastewater from damaged plumbing lines
  • Fire Suppression Systems that can allow stagnant water to enter drinking supplies

Benefits of Annual Backflow Testing

  • Protects your home or business from water contamination
  • Prevents serious health risks from chemicals & bacteria
  • Ensures compliance with Ohio state and federal regulations
  • Avoids costly fines or water shutoffs

If you have a sprinkler system, irrigation system, or fire suppression system, backflow testing is required to prevent contaminants from entering the municipal water supply.

What Is Backflow & How Does It Happen?

Backflow occurs when water flows in the opposite direction than intended, allowing contaminants to enter the clean water supply. This typically happens when there is:

  • A sudden drop in water pressure (such as a water main break or high demand)
  • Cross-connections between potable and non-potable water sources
  • Improperly installed backflow preventers

A properly installed backflow preventer acts as a barrier, stopping pesticides, chemicals, and waste materials from contaminating your water supply.    

What Happens During a Backflow Test?

During a backflow test, The Waterworks’ certified technicians will:

  1. Shut off the water supply to inspect the backflow prevention device.
  2. Check test cocks and shutoff valves to ensure proper function.
  3. Use specialized pressure gauges to measure differential pressure readings.
  4. Identify leaks, pressure issues, or faulty components.

If any issues are detected, our team can immediately perform the necessary repairs—saving you time and money.

Unlike some companies that only certify devices, The Waterworks provides both testing and repair services in a single visit.   

Our Backflow Testing & Repair Services

We offer comprehensive backflow prevention solutions for:

1. Residential Backflow Testing

  • Required for sprinkler systems, private wells, and irrigation systems.
  • Ensures compliance with Ohio EPA regulations.
  • Fast and hassle-free scheduling.

2. Commercial & Industrial Backflow Testing

  • Annual testing for fire suppression systems, medical facilities, restaurants, and more.
  • Official certification submission to local water authorities.
  • Immediate repairs to prevent compliance issues.

3. Backflow Preventer Repair & Replacement

  • Repairing damaged valves, seals, and test cocks.
  • Installing new backflow prevention devices when needed.
  • Ensuring full compliance with state & local regulations.

If your backflow device fails the test, we’ll fix it immediately—so you don’t have to schedule a second appointment.   

Why Choose The Waterworks for Backflow Testing?

For nearly 40 years, The Waterworks has been Columbus, Ohio’s trusted plumbing company for backflow testing and certification. Here’s why homeowners and businesses rely on us:

  • Certified Backflow Testing Experts – Fully licensed to test, certify, and repair backflow prevention devices.
  • Full-Service Repairs – We don’t just test; we fix any issues found during the inspection.
  • Transparent Pricing – Upfront costs with no hidden fees.
  • Quick & Hassle-Free Service – Fast scheduling, reliable results, and compliance documentation.
  • Same-Day Service Available – Avoid fines and water shutoffs with quick testing and certification.

We handle all testing, paperwork, and certification reporting, ensuring your water system stays in compliance.   

Proudly Serving Columbus & Central Ohio

The Waterworks provides backflow testing and certification services across Franklin, Delaware, Licking, Fairfield, Pickaway, Madison, and Union counties. Our service areas include:

  • Columbus
  • Dublin
  • Westerville
  • Gahanna
  • Hilliard
  • Newark
  • Pickerington
  • Powell
  • Reynoldsburg
  • Upper Arlington
  • Grove City
  • Grandview Heights
  • Bexley
  • Beechwold
  • Blacklick
  • Clintonville
  • German Village
  • Lewis Center
  • London
  • Polaris
  • Short North
  • Victorian Village

If your property requires annual backflow testing, we’re just a phone call away.

Schedule Your Backflow Testing & Certification Today

Stay compliant with local regulations and protect your drinking water with certified backflow testing from The Waterworks. Whether you need annual testing, certification, or repairs, we’re here to help.

Call us today to schedule your backflow test and ensure your water is safe!

Schedule Your Service Now!

What Our Customers Are Saying

Since 1986, The Waterworks Plumbing, Drain, Heating & Cooling has been the trusted choice for homeowners and businesses across Central Ohio. Our unwavering dedication to providing reliable, top-quality plumbing, drain, and HVAC services has earned us the trust of our community and numerous five-star reviews. Discover why our customers continue to rely on us for all their service needs.

google Rating
4.8
Based on 3,780 Reviews
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Brad Sothard
January 28, 2026

The work performed by Rob & Dave was truly phenomenal and professional from the get go. The advice and information they provided was excellent.

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Linda Toms
January 28, 2026

The Jonle technician, Mark Johnston, arrived on time. He covered his shoes before stepping onto my floor. He was pleasant and courteous; went about his work, and finished in a reasonable amount of time. I have no complaints and expect my system to work at maximum efficiency.

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Robert Montag
January 28, 2026

JonLe Top notch. Have always been well pleased with their services.

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Nancy Sneed
January 28, 2026

They provided same day emergency water leak service. The two men who came out were very polite and efficient.

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Traci Westerkamp
January 27, 2026

Todd shepherd was very quick to solve our problem he was on time actually early which was great and efficient

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Teri Lierer
January 27, 2026
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Ken Sherrer
January 27, 2026

Technician Matt arrived early and was able to determine the problem fast and provided and explained the options we had to get back up and working!

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Charlie Hardtke
January 25, 2026

Called JonLe for emergency service for my furnace. They responded immediately. The technician Matt did a great job. He quickly figured out what was wrong and got it fixed. He helped me understand what happened and what my options were to keep our furnace working. Very much appreciated.

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Laura Nesbitt
January 25, 2026

Great availability and communication. This company is top-notch. Thank you for your service.

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Sarah Ensign
January 24, 2026

We had an untimely plumbing emergency on a Saturday right before a big snow storm! They responded quickly and fixed everything quickly! Highly recommend!!!!!

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Laina L
January 22, 2026

They were able to come same day. Juan was great and knowledgeable. I appreciate their service and will use them in the future!

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Jim Hall
January 21, 2026

Heating system annual inspection and maintenance was on time and professionally executed by Mr. Shepherd, a knowledgeable service technician. I would welcome him back into my home for future maintenance and/or repairs.

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Miles Thompson
January 19, 2026

Had a water main issue. Feared it was outside. Set appt online through the website, which was fairly straightforward and easy to do from a user standpoint. Rodney, the Technichian assigned to our job , arrived at about 9am and was done by approx 1030. After carefully assessing the situation , he determined the issue was inside and gave us the estimate for what he believed would solve our issue, making clear this was the simplest and that he wanted to start with that to make the repair. If that didn't work , it would be more involved. He did in fact successfully repair the problem by the simpler means. Would recommend Waterworks and will use them again if needed.

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Tom Laine
January 19, 2026

Been with them for several years and always do a great job.

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Brett Short
January 19, 2026

Prompt, punctual and professional. Can't ask for any more than that

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Robert Burgett
January 17, 2026

Colin showed up during the time window, listened to the issue, discussed options, gave me the estimates, then proceeded to fix the toilet issue. Been fine ever since.

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Joe Klawitter
January 16, 2026

replaced electronic filter for dust in my air handler in the attic that I run just about all year for the a/c & my hot water boiler during winter. JonLe never charged me. Thank You!

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Brian Heath
January 16, 2026
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Barbara Alexander
January 16, 2026

Furnace quit so I called them. They sent someone out today and fixed it so I have heat in 12 degrees weather. Very professional service. Friendly and informative. So glad I was referred to them. Need a switch not a new furnace.

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Sarah Cline
January 14, 2026

Kevin came out and did a good job. Nice guy pleasant to talk to and very professional.

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Maddie Sheridan
January 14, 2026

Jason was super knowledgeable and extremely helpful.

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Betty Welch
January 14, 2026

Waterworks replaced our ice maker water line valve as it was leaking. The technician, Conrad Enoch, was excellent and knowledgeable. I would use them again,

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Jesse Carroll
January 14, 2026

Thank for coming on time also for coming and fixing my shower.

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Andy Shaffer
January 13, 2026

Extremely polite and patient while on the call and followed up perfectly with me afterwards.

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frank michaels
January 13, 2026
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MaryLee Duvall
January 13, 2026

Our technician, Chris, was great! He was very knowledgeable and confidently completed our repairs. A+++

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David Jackson
January 13, 2026

Jonle will quote a price in advance, show up on time, with professional and friendly technicians. You can’t ask for more than that.

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Stephen Bennett
January 13, 2026
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Anne Scheve
January 12, 2026

Mark was very efficient, professional ad took time to explain all he did for me. Even took pictures. He was great!

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Shawn Patrick
January 12, 2026

Jonlee always provides great expertise, service & courtesy. Very happy with their services.

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Eric S. Brown
January 12, 2026

Available same day as I called. On time. Neat and respectful, went immediately to inspect the problem, provided an estimate, and began repairs. Completed quickly and efficiently. Left no mess. All good.

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Charles Little
January 11, 2026

Both techs were very professional and friendly and did a great job with our plumbing projects. The only problem was that they left a lot of solder splashes and blobs on the basement floor, could have done a better job of cleaning up. The upstairs laundry room project was done very well and everything was clean when they left.

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Toni Brooks
January 11, 2026

Austin was knowledgeable and professional. If needed I would call on Waterworks again.

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John Adams
January 10, 2026

We move in 10 years ago. Several year ago we had JonLe service our two systems. Our AC units we’re now 15 years old and needed replaced along with the coils. JonLe gave us great prices, great service and the staff finished the job on both systems in one day. Couldn’t be happier, Thanks JonLe John A.

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Daniel Harrington
January 8, 2026

Peter was straight to the point, kind, professional, and prompt. Exceeded my expectations.

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Ken Peace
January 7, 2026

We feel that your salesperson and the technicians where very experienced. Happy with the entire service.

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Pepper Peale
January 7, 2026

We are long-time customers of Jonle. Their staff is always on time, thorough, clean and very professional. And today was nonexception. Mark was great!

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Dave Green
January 6, 2026

We have used Jonle Heating and cooling for more than 30 years. They have always been great to work with!

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Stephen Hoerst
January 5, 2026

I have been using Jonle for over 20 years. They installed a new furnace last year. Today they did the bi-annual inspection/tune up. Mark Johnston was the technician. He was extremely thorough. Documented/photographed and explained every step of the service. I could not be more pleased. A real pro!!

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William Chumbley
January 5, 2026

Always great service, Jason gave me good information on condition and age of my furnace. He was very knowledgeable and helpful.

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Ron Biggs
January 4, 2026

Friendly; knowledgeable and on time

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deborah oneal
January 3, 2026

Quick very detailed service ,friendly and knowledgeable service person.

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Jack Fisher
January 2, 2026

On time, professional, and clean. Will absolutely use again, thank you!

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Physics Man
January 2, 2026

JonLe always polite, professional, and highly skilled.

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Caitlin Faas
January 2, 2026

Glad I chose Waterworks for my plumbing main valve fix - they quoted me $100 under Atlas Butler (where I was a member). Very professional!

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Denise Golonka
January 2, 2026
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Len Damico
January 2, 2026

The Waterworks Plumbing, Drain, Heating & Cooling--- Living in a high-rise residence comes with a lot of special attention in regard to plumbing, draining and sewage. Waterworks Has become a trusted ally In regard to problem, identification, planning, Knowledgeable and experienced design, And flawless implementation. What more could you want? I highly recommend Waterworks.

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Dan O'Rourke
December 31, 2025

We’ve been loyal JonLe customers since 1996 which included replacing all furnaces and A/C units as well as installing zoned heating and cooling solutions throughout our homes. They are always highly professional, prompt with excellent service at all times. I would not go anywhere else. Their sales, installation and service teams are first rate! Thanks JonLe!

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Megan Patrick
December 31, 2025

Easy to book an appointment through the site, my technician actually showed up early and was clean, polite and efficient. He explained the issue clearly and got our outdated water heater replaced same day.

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Larry McDonald
December 31, 2025

These folks do a great job. They're prompt, courteous, and know what they're doing. They supply top of the line repair parts.

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